Mattress



FIG. 1 is a perspective view of a mattress in accordance with thepresent invention;

FIG. 2 is an end view of the mattress of FIG. 1, the opposite end beinga mirror image thereof;

FIG. 3 is a side view of the mattress of FIGS. 1 and 2,the opposite sidebeing a mirror image thereof;

FIG. 4 is a top view of the mattress of FIGS. 1-3;

FIG. 5 is a fragmentary detailed perspective view of one corner of themattress of FIGS. 1-4; and,

FIG. 6 is a bottom view of the mattress of FIGS. 1-5.

The broken lines shown in the drawings represent portions of themattress that form no part of the claimed design.

The stippling shown in the Figures indicates contrasting tone,contrasting color, contrasting materials or contrasting surfacetreatment as compared to the portion of the mattress without stippling.

CLAIM The ornamental design for a mattress, as shown and described.